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i LettcraPtteozt'No. 78,988,- dateal June 16, 1868.

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die ,tlgehnlt nient tu tu traitants what mit mating ont it its suma To ALL WHoM 1r MAY GONGERN:

Be it known that L ALBERT (l. McKENDnEE, of Conneaut, inthe county of Ashtabula, and State of Ohio,

havetinvented a new and improved Ladder; and I do hereby declare that the following is atzull and exact description of the same, reference being had to the accompanying drawings, and. to the letters of reference marked thereon. i

This invention relates to certain improvements in step-ladders, the novelty of which consists in a simple device, by means of which the ladder is readily moved from pla'ce to place, when desired, as will be described hereinafter. l I

Figure 1 represents a side elevation of my improved ladder, and

Figures 2, 3, and 4, views of different parts detached.

In the drawings- V A A represent'the two sides of the ladder, constructed in the usual tapering form.

BB represent sides of a frame, which are connected, by means of the top step b and side steps b 6. Beneath the steps are'hung, by the upper rounds, the ladder A A', as shown. i

C C represent braces, hinged at and extending upward from about the centreoffthe ladders A A to a point beneath the centre of the step b, at which point they are attached`to the bar e. i

d d represent slats, rigidly attached to 'the centre of thesi'des' B B of the frame, and so arranged as to form `gudes for the end of the bar c, which projectsoutward for this purpose. v

e represents a notched bar, hinged at one end, by which 'means the ladders are held at the desired distance apart. l

' O represents a frame, consisting oi`.the shaft o, having the loose rollers o1 and slotted bars o2, which latter arcconnected with the'lower round ofthe ladder A.

It will be observed that' the ends of the ladder A are constructed with semicircular notches o3, into which tit the outer ends ofthe shaft o, as shown.

:v :v representV pins, inserted in the ends of the ladders A A', for the purpose of preventing the ,latter from slipping. These may be used ornot, as may be desired.

From this description, the operation of myinvention will be'readily understood.

The ladders A may be drawn together or pushed apart, according to the height desired, they being held firmly in either position by the bar e.

If' the pins are used, these will enter the looror earth, and also serve to hold the ladder firmly in place. The bar c oi thc'braces 01C moves freely up and down in the guides d d, thus accommodating itself to any change in the position of the ladders.A By this arrangement, the steps 6 b of the ladder are kept always in the same line, and` any proper amount of weight may be placed upon any part of the ladder and steps Without danger of its shifting or changing position.

When it is desired to move thc ladder, one side A is elevated, and the shaft o is allowed toslip under and lit into the semic'ircular'notches o3; this operation being easily performed by meansqof-the slotted bars o2. The other side of the ladder then being raised, it may he trundled to any desi-red place, which being reached, the shaft o is readily displaced, and the ladder is readyl 'for use. This arrangement may he attached to hoth'sides, if necessary.

By the genera-l construction and arrangement herein described, a strong aud simple ladder is obtained, which can be moved, it necessary, by a child. It will be found especially convenient, however, for painters, Plasterers, and for use in orchards, where a firm and broad surface is necessary. This ladder will raise and lower twothirds faster than" any other in use.

Having thus fully described my invention, what I claiinas new, and desire to secure by Letters Patent, is-

The sha-ft O, roller o, and slotted bar o2, when comhined and arranged with the ladder A', as and for the purpose set forth. l

This specification signed and witnessed, this sixth day of April, 1868.

ALBERT C. MCKENDBEE.

Witnesses:

SAML P. FENroin CHnNcY Ii. ANDREWS. 

